3-Piece Step Drill Bit Set
- Single-fluted cutting edge for greater control and rounder holes
- Ideal for drilling holes in thin (5mm) materials such as mild steel, copper, brass, aluminum, plexiglass, wood and laminates
- 3-flatted shank won’t slip in chuck
- Speedpoint tip for fast starting
- Laser marked sizes won’t wear off with use
- Unibit #1M contains a 3/8″ hex shank and contains 9 hole sizes- 4mm – 12mm
- Unibit #2M contains a 1/4″ hex shank and will drill 5 hole sizes- 4,6,8,10 and 12mm
- Unibit #3M contains a 3/8″ hex shank and will drill 6 hole sizes- 8,10,12,14,16 and 18mm
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